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Optics Letters

Optics Letters

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  • Vol. 29, Iss. 22 — Nov. 15, 2004
  • pp: 2650–2652

Efficient generation of high-power quasi-single-cycle terahertz pulses from a single infrared beam in a second-order nonlinear medium

Yujie J. Ding  »View Author Affiliations


Optics Letters, Vol. 29, Issue 22, pp. 2650-2652 (2004)
http://dx.doi.org/10.1364/OL.29.002650


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Abstract

It is shown that the coherence lengths for terahertz (THz) generation based on difference-frequency generation within an ultrafast infrared pulse can be sufficiently long for a wide bandwidth about each phase-matching wavelength owing to a slight dispersion in the THz region. As a result, quasi-single-cycle THz pulses can be efficiently generated. An efficient conversion for the parametric process is made possible not only by use of the wide phase-matching bandwidth but also by optimization of the pulse width for each peak THz frequency. I have investigated the strong-pump regime and found the limits to the conversion efficiencies to generate high peak intensities efficiently for THz waves with which to explore nonlinear regimes of the THz interactions.

© 2004 Optical Society of America

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes

Citation
Yujie J. Ding, "Efficient generation of high-power quasi-single-cycle terahertz pulses from a single infrared beam in a second-order nonlinear medium," Opt. Lett. 29, 2650-2652 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-22-2650

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